Multiframe subjects: Drawing tools only render previous marks for the active frame

[eatyourgreens]

Package

Choose from the list:

• app-content-pages
• app-project
• lib-classifier
• lib-panoptes-js
• lib-react-components
• unknown

Describe the bug

Drawing annotations only record marks for the active frame in annotation.value. As a result, when previous marks are rendered, they only show marks in the active frame (for a multi-frame subject.)

To Reproduce

Steps to reproduce the behavior:

1. Go to https://www.zooniverse.org/projects/communitiesandcrowds/how-did-we-get-here/classify/workflow/23790
2. Draw lines on both frames of a subject.
3. Answer the yes/no question and click Next.
4. The subject now only shows lines that you drew on the active frame.
5. Go back to the previous step and change the active frame.
6. Add a new line.
7. Click Next and see that only the active frame has lines again.

Expected behavior

All the marks that you've made should be stored in annotation.value and shown.

Additional context

When you save a classification, by pressing Done, annotation.value is ignored. The saved annotation is generated from task.marks, so saved classifications aren't missing any marks. annotation.value is out of sync with task.marks for drawing and transcription annotations.

Stories and tests only mock a single subject frame, so this bug isn't picked up in CI.